Keywords pulmonary artery;vascular endotheli-um;nitric acid;epoprostenol;cyclic GMP;cyclic AMP;phosphoric diester hydrolases;

• 肺动脉;血管内皮;硝酸;依前列醇;环鸟苷一磷酸;环腺苷一磷酸;磷酸二酯水解酶;